Shell

Eierschale

(hard covering of an egg)

Granate

(hollow usually spherical or cylindrical projectile fired from a mortar or a cannon)

Hülle

(any hollow structure; framework, or exterior structure)

Hülle

(chemistry: set of atomic orbitals that have the same principal quantum number)

Hülse

(casing of an artillery projectile)

Schale

(hard calcareous or chitinous external covering of many invertebrates)

Schale

(hard covering of an egg)

Schale

(covering of a nut)

Shell

(computing: general-purpose environment)